Shell-condenser coupling



Mm'h 31,1925. 1,531,551.

J. c. GOQSMANN SHELL CONDENSER COUPLING Original Filed Aug. 24, 1921 W II L A E;- I, "F If V "IL Hm? I J'walim C. 500521701200,

Patented Mar, 31, 1925.

UNITED STATES 1,531,551 PATENT OFFICE.

JUSTUS C. GOOSMANN, OE'CHICAGO, ILLINOIS.

SHELL-CONDENSER COUPLING,

Original application filed August 1922. SeIiaINO. 578,627.

Couplings, of which the following is a spec ification.

This invention relates generally to conplings or connections, andparticularly to a coupling for shell condensers, this appl1- cationbeinga division of my co-pending application, Serial No. 494,762, filedAugust 2 1, 1921. 4

One of the purposes of this invention is to provide for the connectionto a heat exchange apparatus, such as a shell condenser adapted for usein refrigerating systems, of the pipes which communicate with thecondenser so that a strong and durable connection will be made whichwill not be liable toleak under pressure, and which can be readilyassembled and readily disconnected and taken apart when occasionrequires.

Another object is to provide a coupling which can be economicallymanufactured and which will efiectively withstand the strains imposedthereon by expansion and contraction of the parts which are caused bydifferences in temperatures of the contents of the condenser and pipes.

A preferred embodiment of the invention is illustrated in the singlefigure of the drawings, which is a fragmentary sectional view of acondenser equipped with my invention.

Referring to the drawings, reference character 3 indicates generally acylindrical casing forming a shell, in which the cooling coils and otherapparatus of the condenser, are disposed. The lower end of this casingis interiorly threaded to accommodate a plug 4 forming the bottom of thechamber, and leakage around the plug is prevented by filling in thegroove between the bottom of the casing and the plug with hard solder,as indicated at 5. The lower end of the shell is strengthened by a heavyring 6 which is shrunk onto the shell, and the whole structure ismounted in a standard or base 7 comprising an upwardly extending splitflange 8 adapted to surround the casing, and in which the casing isclamped by bolts 9.

The bottom plug 4 is provided with passages 11 and 12, forming the inletand outlet to the chamber. When the apparatus is used as a condenser,the fluid (such as carbonic-acid gas) which is delivered under pressurefrom a compressor, a fragment of which is indicated by referencecharacter 10, is conducted'through, a pipe. 13 to the passage 11 fromwhich itis delivered into the chamber near the top thereof by avertically disposed pipe 14. The liquid accumulating in the bottom ofthe chamber entersthe passage '12 through a radially perforated pipe 15projecting a limited distance into the chamber and is delivered to theexpansion: coils. or other point of use through a delivery pipe 16.

The bottom plug 4 is also provided with a centrally disposed openingthrough which the pipe 17 projects. The upperend of the pipe isconnected with the coils as will be later explained, and the lowerendhas threaded thereon a nut or ring 18. Leakage around the pipe 17 isprecluded by a packing ring 19 preferably made of type metal. A hollowhead 21 is adapted to surround the nut 18, and leakage between 24, 1921,Serial No. 494,762; Divided and this application filed July 31,

the head and the nut is guarded against by a packing ring 22 preferablyofvulcanized fibre. A plurality of bolts 23 passed through the head andthreaded into tapped openings 24 in the bottom 4: are utilized to drawthe head toward the bottom, thus compressing'the packing rings 19 and22, so as to insure leak proof joints at the bottom of the apparatus. W

The cooling liquid, such as water, for instance, in a refrigeratingsystem is delivered to the bottom of the apparatus from a supply pipe 25which is connected through an elbow 26 with the head 21. The liquid issupplied to this pipe from any suitable source through a pipe 20 and hasconnected thereto a discharge pipe 27 equipped with a shut off valve 28and in normal operating of the apparatus the Valve 29 in an extension ofpipe 25 is opened and valve 28 is closed to insure flow of the'coolingliquid upwardly into the apparatus.

The upper end of pipe 17 is connected with 33 and 84 are connected'toconvey the 0001- a header 31 to which the internested coils 32,

ing medium upwardly through the con.-

denser. The coils are connected at their upper ends with a dischargepipe, all as dis-- tion any leakage around the pipe 17 is preeluded bythe gaskets 19 and 22 which may be compressed as tightly as desired byturning up the bolts 23. Furthermore, the joints will not be loosened byexpansion or contraction of the pipe 17 since any movement of the pipewill be transmitted to the inner. end

thereof, while the outer end remains in fixed relation with respect tothe plug 4. v

The details of construction illustrated and described may be variedwithin considerable limits within the scope of theinvention, andwhile-the invention is shown applied to a shell condenser, it isobviously capable of many other uses.

I claim: 1

1. In a device of the character described, the combination of acylindrical casing, a bottom threaded into the lower end thereof, meansfor clamping the lower end of the said nut and said bottom and said nutand said cap, respectively, and means for clampmg said cap tosaid-bottom to compress said packing rings.

2. In a device of the character described,

the combination of a casing provided" with an opening in one wallthereof, a pipe extending through said wall and movable relativelythereto, said wallbeing provided with pipe, a nut threaded onto theouter end of the pipe, a cap disposed over said nut and provided with anopening aligned with said pipe and with a recess surrounding the innerend of said opening, a gasket disposed. in each of said recesses at theends of the nut, and means for drawing said cap toward said 40' a recesson its outer face surrounding said wall to simultaneously compress bothof said packings against the nut.

JUSTUS C. GO'OSMANN.

